Insulation material is a substance used to reduce the transfer of heat, sound, or electricity. It helps maintain comfortable temperatures in buildings and reduces energy costs by preventing heat loss in winter and heat gain in summer. Common types of insulation materials include fiberglass, foam board, and cellulose. In addition to thermal insulation, some materials also provide soundproofing benefits, making them useful in residential and commercial spaces. Proper insulation can enhance energy efficiency and contribute to a more sustainable environment by lowering energy consumption and greenhouse gas emissions associated with heating and cooling systems.